/**
* Copyright (C) 2009 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.master.region.impl;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.threeten.bp.Instant;
import com.google.common.base.Supplier;
import com.opengamma.DataNotFoundException;
import com.opengamma.core.change.BasicChangeManager;
import com.opengamma.core.change.ChangeManager;
import com.opengamma.core.change.ChangeType;
import com.opengamma.id.ObjectId;
import com.opengamma.id.ObjectIdSupplier;
import com.opengamma.id.ObjectIdentifiable;
import com.opengamma.id.UniqueId;
import com.opengamma.id.VersionCorrection;
import com.opengamma.master.SimpleAbstractInMemoryMaster;
import com.opengamma.master.region.ManageableRegion;
import com.opengamma.master.region.RegionDocument;
import com.opengamma.master.region.RegionDocumentComparator;
import com.opengamma.master.region.RegionHistoryRequest;
import com.opengamma.master.region.RegionHistoryResult;
import com.opengamma.master.region.RegionMaster;
import com.opengamma.master.region.RegionSearchRequest;
import com.opengamma.master.region.RegionSearchResult;
import com.opengamma.util.ArgumentChecker;
import com.opengamma.util.paging.Paging;
/**
* A simple, in-memory implementation of {@code RegionMaster}.
* <p>
* This master does not support versioning of regions.
* <p>
* This implementation does not copy stored elements, making it thread-hostile.
* As such, this implementation is currently most useful for testing scenarios.
*/
public class InMemoryRegionMaster
extends SimpleAbstractInMemoryMaster<RegionDocument>
implements RegionMaster {
/**
* The default scheme used for each {@link ObjectId}.
*/
public static final String DEFAULT_OID_SCHEME = "MemReg";
/**
* Creates an instance.
*/
public InMemoryRegionMaster() {
this(new ObjectIdSupplier(DEFAULT_OID_SCHEME));
}
/**
* Creates an instance specifying the change manager.
*
* @param changeManager the change manager, not null
*/
public InMemoryRegionMaster(final ChangeManager changeManager) {
this(new ObjectIdSupplier(DEFAULT_OID_SCHEME), changeManager);
}
/**
* Creates an instance specifying the supplier of object identifiers.
*
* @param objectIdSupplier the supplier of object identifiers, not null
*/
public InMemoryRegionMaster(final Supplier<ObjectId> objectIdSupplier) {
this(objectIdSupplier, new BasicChangeManager());
}
/**
* Creates an instance specifying the supplier of object identifiers and change manager.
*
* @param objectIdSupplier the supplier of object identifiers, not null
* @param changeManager the change manager, not null
*/
public InMemoryRegionMaster(final Supplier<ObjectId> objectIdSupplier, final ChangeManager changeManager) {
super(objectIdSupplier, changeManager);
}
//-------------------------------------------------------------------------
@Override
public RegionSearchResult search(final RegionSearchRequest request) {
ArgumentChecker.notNull(request, "request");
final List<RegionDocument> list = new ArrayList<RegionDocument>();
for (RegionDocument doc : _store.values()) {
if (request.matches(doc)) {
list.add(doc);
}
}
Collections.sort(list, RegionDocumentComparator.ASC);
RegionSearchResult result = new RegionSearchResult();
result.setPaging(Paging.of(request.getPagingRequest(), list));
result.getDocuments().addAll(request.getPagingRequest().select(list));
return result;
}
//-------------------------------------------------------------------------
@Override
public RegionDocument get(final UniqueId uniqueId) {
return get(uniqueId, VersionCorrection.LATEST);
}
//-------------------------------------------------------------------------
@Override
public RegionDocument get(final ObjectIdentifiable objectId, final VersionCorrection versionCorrection) {
ArgumentChecker.notNull(objectId, "objectId");
ArgumentChecker.notNull(versionCorrection, "versionCorrection");
final RegionDocument document = _store.get(objectId.getObjectId());
if (document == null) {
throw new DataNotFoundException("Region not found: " + objectId);
}
return document;
}
//-------------------------------------------------------------------------
@Override
public RegionDocument add(final RegionDocument document) {
ArgumentChecker.notNull(document, "document");
ArgumentChecker.notNull(document.getRegion(), "document.region");
final ObjectId objectId = _objectIdSupplier.get();
final UniqueId uniqueId = objectId.atVersion("");
final ManageableRegion region = document.getRegion();
region.setUniqueId(uniqueId);
document.setUniqueId(uniqueId);
final Instant now = Instant.now();
document.setVersionFromInstant(now);
document.setVersionToInstant(null);
document.setCorrectionFromInstant(now);
document.setCorrectionToInstant(null);
_store.put(objectId, document);
_changeManager.entityChanged(ChangeType.ADDED, objectId, document.getVersionFromInstant(), document.getVersionToInstant(), now);
return document;
}
//-------------------------------------------------------------------------
@Override
public RegionDocument update(final RegionDocument document) {
ArgumentChecker.notNull(document, "document");
ArgumentChecker.notNull(document.getUniqueId(), "document.uniqueId");
ArgumentChecker.notNull(document.getRegion(), "document.region");
final UniqueId uniqueId = document.getUniqueId();
final Instant now = Instant.now();
final RegionDocument storedDocument = _store.get(uniqueId.getObjectId());
if (storedDocument == null) {
throw new DataNotFoundException("Region not found: " + uniqueId);
}
document.setVersionFromInstant(now);
document.setVersionToInstant(null);
document.setCorrectionFromInstant(now);
document.setCorrectionToInstant(null);
if (_store.replace(uniqueId.getObjectId(), storedDocument, document) == false) {
throw new IllegalArgumentException("Concurrent modification");
}
_changeManager.entityChanged(ChangeType.CHANGED, document.getObjectId(), storedDocument.getVersionFromInstant(), document.getVersionToInstant(), now);
return document;
}
//-------------------------------------------------------------------------
@Override
public void remove(final ObjectIdentifiable objectIdentifiable) {
ArgumentChecker.notNull(objectIdentifiable, "objectIdentifiable");
if (_store.remove(objectIdentifiable.getObjectId()) == null) {
throw new DataNotFoundException("Region not found: " + objectIdentifiable);
}
_changeManager.entityChanged(ChangeType.REMOVED, objectIdentifiable.getObjectId(), null, null, Instant.now());
}
//-------------------------------------------------------------------------
@Override
public RegionDocument correct(final RegionDocument document) {
return update(document);
}
//-------------------------------------------------------------------------
@Override
public RegionHistoryResult history(final RegionHistoryRequest request) {
ArgumentChecker.notNull(request, "request");
ArgumentChecker.notNull(request.getObjectId(), "request.objectId");
final RegionHistoryResult result = new RegionHistoryResult();
final RegionDocument doc = get(request.getObjectId(), VersionCorrection.LATEST);
if (doc != null) {
result.getDocuments().add(doc);
}
result.setPaging(Paging.ofAll(result.getDocuments()));
return result;
}
@Override
protected void validateDocument(RegionDocument document) {
ArgumentChecker.notNull(document, "document");
ArgumentChecker.notNull(document.getRegion(), "document.region");
}
}